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P. w. YOUNG; Grain-Separators No. 207,583. Patented Aug. 27,1878

O00 COO INVENT UR:

ATTORNEYS.

N.FETER$. FHOTO-LITHOGRAPHER. WASHINGTON 0 C.

UNITED STATES PATENT QFFIOE.

FREDERICK W. YOUNG, OF UNION, OREGON, ASSIGNOR TO HIMSELF, JOSEPH H.SHINN, ROBERT S. GATES, AND BEVERLY POWERS, OF SAME PLACE.

IMPROVEMENT IN GRAIN- SEPARATOR S.

Specification forming part of Letters Patent No. 207,583, dated August27, 1878 application filed December 17, 1877.

To all whom it may concern:

Be it known that I, FREDERICK W. YOUNG, of Union, in the county of Unionand State of Oregon, have invented a new and Improved Grain-Separator,of which the following is a specification:

In the accompanying drawing, Figure 1 represents a vertical longitudinalsection of my improved grain-separator Fig. 2, a top view of the same,and Fig. 3 a detail top view of the lower wire-mesh screens.

Similar letters of reference indicate corresponding parts.

This invention has reference to an improved grain-separator by which allthe light small grain, cracked grain, weed-seeds, and oats are separatedin effective manner from the heavy grain, so as to grade it thereby atthe sametime.

The separator is of simple construction, easily handled, durable, andnot liable to get out of order.

The invention will first be described in connection with the drawing,and then pointed out in the claims.

Referring to the drawing, A represents a number of perforated screens,that are supported in an upper laterally reciprocating shoe, A,receiving the grain from a top hopper, with adjustable slide-gate, inthe customary manner in grain-separators. The perforated screens Aseparate the coarser impurities and pass the grain to a lower set ofscreens, B, made of long mesh wires, as shown in detail in Fig. 3, whichscreens are reciprocated, by the usual rock-shaft and crank-rod, fromthe driving-shaft, and, in addition thereto, exposed to a vibratory orshaking motion, for the purpose of preventing the clogging of the lowerscreen. This vibratory motion is imparted to the lower screens, B, byplacing the screen-shoe B on supporting-rollers a a at the upper andlower parts, and attaching so-called shake jar-plates b to the underside of the screen-shoe at the upper or rear end of the same. Theplates 1) are made with a ribbed or rough surface, and pass over theupper rollers, a, so as to create a continual jar of the screens whilein motion, and prevent thereby any possibility of clogging. The upperrollers, a, turn in side bearings of an inclined board, 0, that servesto conduct the screenings into a laterally-sliding box, D, at the bottomof the separator. The conducting-board O is supported by slotted arms 61on pivots d, on which it may swing, so as to be adjusted into higher orlower position by means of supporting-pins c and holes e, and impartthereby a greater or less degree of inclination to the lower wirescreens, B, as required by the quality of grain to be separated. The fanE is arranged at the front end of the separator, and a deflecting-board,E, placed intermediately between the same and the lower screens, B, thedeflecting-board E being pivoted to the sides of the separator-frame,and adjusted to any point on the lower screens, or to the upper, ifdesired, by suitable means.

The deflecting-board serves to concentrate the draft from the fan-bladeson the lower screens, so as to hold the light small grain, crackedgrain, weed-seed, and oats on the screens until they are sieved orforced through into the screen-box, while the heavy grain passes down infront of the separator, being thus graded off from the lighter andcracked rain. g The deflecting-board E may be thrown around therocker-shaft, to throw the draft on the upper screens, thus making agood chaffer.

A grain-gage board, F, is hinged to the front of the screen-box frame,and may be adjusted at the end of the lowermost wire screen,

B, as shown in dotted lines in Fig. 1, so as to conduct all the screenedseeds and grain into the seed-box; or it may be swung intobackwardly-inclined position, so as to regulate the flow of seeds andgrain out of the screen-box and separate them to some extent from thelighter seeds, such as oats, &c.

The separator acts thus in the nature of a grader, and cleans the grainin superior man ner by the upper screens and the lower vibrat ingscreens, in connection with the draft-(la fleeting plate.

When it is desired to chaff grain, the de= flector E may be releasedfrom the adjustment shown and turned back against the rocking bar H,which thus performs the additional function of a rest, as shown indotted lines on Fig. 1 of the drawing. The upper portion of theair-outlet is thus closed and the blast compelled to pass upward alongthe lower screen.

The-shaft K has a pinion, N, which is operated by a spur-Wheel, M, onthe hand crankshaft 1, and an arm, k, with a pin, connected by slottedbar L, which both vibrates the shaft H to reciprocate screens B, andactuates the shoe A to move the screens A.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination of shoes A B, rocking bar H, anddeflector E, relatively arranged as and for the purpose described.

FREDERICK \V. YOUNG.

lVitnesses:

W. A. GATES, S. 0. SWAOKHAM'EER.

